Floped flush in B vs.B situation.. Satck off? 300NL 6max

[nevereverwin]

Effective stacks 300$. Blinds are 2$/3$. SB is 42/24 over 120 hands.

I am in BB with 9 [img]/images/graemlins/club.gif[/img]2 [img]/images/graemlins/club.gif[/img] folded to SB who compleates I check obv.

Flop: 5 [img]/images/graemlins/club.gif[/img]K [img]/images/graemlins/club.gif[/img]J [img]/images/graemlins/club.gif[/img] pot 6$
SB checks, I check.

(Bcoz previously he allways raised my blind and fired pot on flop, if flop was ch/ch he fired turn 100%)So I wanted him to fire turn and then I would raise and maybe hi will look at it as a bluff bcoz I am mad at him or smthing..(bad idea?)

Turn: 8 [img]/images/graemlins/diamond.gif[/img] pot 6$
SB fires 5 $(like I wanted him to), I raise to 18$ and he quickly rr to 47$.. me?

shove bcoz OMG I have flush? Call... and what? A bit confused here... Any advice welcome..